Tanzu Mission Control creates a number of AKS resources for AKS lifecycle management when you create an AKS credential.

Resources and Naming Convention

When you create an AKS credential in Azure using Tanzu Mission Control, it creates a number of resources, such as storage, keyvault, function, etc., and these management plane resources get put in their own resource group with the naming convention vmwtmc-XXXXXXX-XXXXXX. They are tagged with the Tanzu Mission Control Org, Credential Name, and Account ID.